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help / color / mirror / Atom feedFrom: Andres Freund <[email protected]>
To: Bharath Rupireddy <[email protected]>
Cc: [email protected]
Cc: Thomas Munro <[email protected]>
Cc: Yura Sokolov <[email protected]>
Subject: Re: heavily contended lwlocks with long wait queues scale badly
Date: Mon, 31 Oct 2022 16:51:14 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <CALj2ACWGHuuk0OmpEW8Kd93W1kYejia0PgfYj7wP700VhUqV8Q@mail.gmail.com>
References: <[email protected]>
<CALj2ACWGHuuk0OmpEW8Kd93W1kYejia0PgfYj7wP700VhUqV8Q@mail.gmail.com>
Hi,
On 2022-10-31 16:21:06 +0530, Bharath Rupireddy wrote:
> BTW, I've seen a sporadic crash (SEGV) with the patch in bg writer
> with the same set up [1], I'm not sure if it's really because of the
> patch. I'm unable to reproduce it now and unfortunately I didn't
> capture further details when it occurred.
That's likely because the prototype patch I submitted in this thread missed
updating LWLockUpdateVar().
Updated patch attached.
Greetings,
Andres Freund
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